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a 280 mu f capacitor is charged to 460 v and a375 mu f capacitor is charged to 525 vthese capacitors are then
object a is metallic and electrically neutral it is chargedby induction so that it acquires a charge of -3010-6c object
a barefoot field-goal kicker imparts a speed of 23 ms to a football initially at rest if the football has a mass of 024
figure below shows two very long straight wires in crosssection that each carry a current of 417 a directly out of
when the play button is pressed a cd accelerates uniformlyfrom rest to 495 revmin in 26 revolutions if the cd has a
a slide projector has a converging lens whose focal length is10500 mm a how far in meters from the lensmust the screen
the transmitting antenna for a radio station is 755 km fromyour house the frequency of the electromagnetic wave
a cylindrical conducting shell of radius rho4mm and negligible thickness forms the inner conductor of coaxial line the
spherical capacitor the plates of a sphericalcapacitor have radii 310 and 450 mma calculate the capacitanceb what must
a beam contains 84 x 108 doubly charged positiveions per cubic centimeter all of which are moving north with aspeed of
a fuse in an electric circuit is a wire that is designed to melt and thereby open the circuit if the current exceeds
during the 42 min a 69 a current is set up in a wire how many a coulombsand b electrons pass through any crosssection
a disk-shaped merry-go-round of radius 243 rm m andmass 185 rm kg rotates freely with anangular speed of0701 rm revsa
a tall tree is growing across a river from you you would like to know the distance between yourself and the tree as
in a hydro-electric power station water falls through a 75 mpipe at the rate of 1500 kg s-1 kilograms per second how
a coin is placed 32 cmfrom the center of a horizontal turntable initially at rest the turntable then begins to rotate
a photovoltaic cell can produce an average of 40 wm-2 watts permeter squared of electrical energy if it is directly
a hollow sphere of radius 050 m withrotational inertia i 0038 kgm2 about a line through its center of mass
abox has a weight of 150n and if being pulled across ahorizontal floor by a force that has a magnitude of 110n the
two resistors r1100 ohms and r2200 ohmsare connected in parallel across a battery the current throughr1 is 0150 amperes
a compact disk player has just been turned off a disk deceleratesuniformly from an initial angular velocity of 720 revs
the average intensity of light emerging from a polarizing sheet is0692 wm2 and the averageintensity of the horizontally
a 29-kg block slides with a speed of 16ms on anbsp frictionless horizontal surface until it encounters a springaif the
lets say you have a helicopter with 3 blades and eachblade is 520 m long and has a mass of 220 kgthe rotor is rotating
two converging lenses each of focal length 131 cm are placed 611 cm apart and an object is placed 285 cm in front of